Combination tool



' Aug. 12, 1930. L. WERNl-CKE COMBINATION TOOL Filed Aug. 24, 1925 2Sheet t 1 V JN EN A TTOR J Filed Aug. 24, ,25 2 Sheets-Sheet 2 ATTORNEY?ATEZS LOUIS WERNICKE, or wnsr BEND, Wisconsin COMBINATION TOOLApplication filed August 24, 1925. Serial No. 52,030.

This invention relates to certain new and useful improvements in tools,and refers more particularly to a tool especially designed for use bybuilders.

At the present time builders find it necessary to have a number ofseparate tools that are expensive and necessitate the carrying of anunusually large tool kit, which is objectionable. Hence, with the aboveand other objections in mind, my invention has for one of its objects,to provide a combination tool whereby a spirit level, protractor, trysquare, straight edge and other similar tools are combined into oneunitary device.

A further object of this invention is to provide a combination tool ofthe class described in which a plate member is rotatably mounted in abase member, said plate member and base member having cooperatinggraduations delineated thereon, and said plate member carrying a pair ofspirit levels arranged to be visible from either side.

1V ith the above and other objects in View, which will appear as thedescription pro ceeds, my invention resides in the novel construction,combination and arrangement of parts substantially as hereinafterdescribed, and more particularly defined by the appended claim, it beingunderstood that such changes in the precise embodiment of the hereindisclosed invention may be made as come within the scope of the claim.

In the accompanying drawings, I have illustrated one complete example ofthe physical embodiment of my invention, constructed according to thebest mode I have so far devised for the practical application of theprinciples thereof, and in which:

Fig. 1 is a plan view of an improved tool embodying my invention;

Fig. 2 is a sectional view taken through Fig. 1 on line 22; and I Fig. 3is a fragmentary sectional View taken through Fig. 1 on the plane ofline Referring more particularly to the accompanying drawings in whichlike numerals designate like parts throughout the several views:

The numeral 5 designates the base member of my improved tool, and has anenlarged central circular opening 6 therein, in which is rotatablysecured, by means to be later described, a circular plate 7 having acentral opening 24. The base member 5 has one edge thereof formed on astraight line and struck laterally to provide a flange 8rforming a.straight edge.

The plate 7 has a member 9 secured thereto, to one face thereof, and theopposed ends of said member coincide with the adjacent edges of saidplate to engage the base member. The diametrically opposed knurled setscrews 12 have threaded engagement with the base 5, and are providedwith washers or flanges 13 which extend beyond the adjacent peripheralportion of the base 5 and engage the adjacent portions of the plate 7 onthe opposite side to the member 9 whereby said plate will be rotatablysecured in opening 6. With this construction, the flanges or washers 13maybe brought into binding engagement with the member 5 and thusrestrain the plate 7 from rotation within the opening 6, but a looseningof the screws 12 will permit the ready rotation of said plate to thedesired position.

As illustrated in Fig. 1, the base member 5 has graduations 14delineated on one face thereof at this inner peripheral edge and whichdelineations begin with zero substantially perpendicular with respect tothe straight edge 8 and graduate to either side thereof up to 90representing the degrees of one fourth a circle.

The plate 7' is also provided with graduations 15 on its outerperipheral edge beginning with zero substantially perpendicular withrespect to the edge on member 9 fastened thereto and graduated to eitherside thereof to any desired pitch, indicating the elevation in inchesand fractions thereof for each foot on the base line, within the limitsof the graduation 15.

The member 9 and plate 7 have secured thereto, as shown in Figs. 1 and 2a spirit level 17 which is provided with a projecting housing 18 havinga central aperture as at 19 to permit sighting of the spirit level fromeither side of the tool. A similar spirit level 17 is secured to theupper opposite portion of the member 7 as shown in Fig. 1. \Vhen it isdesired to use the spirit level 17, the zero of the plate 7 is alinedwith the zero of the base member, when the spirit level 17 will be intrue parallel relation with the straight edge 8. When it is desired toascertain the vertical plumb of work, the Zero of the plate 7 is broughtin alinement with one of the 90 10 degrees of the base members to bringthe spirit levels in true right-angular relations with respect to thestraight edge 8.

For the purpose of attaching a steel rule member 20 to the plate 7 themember 9 is bent outwardly, and carries two binding screws 23 forremovably securing the rule between their inner ends and the plate asillustrated in Figs. 1 and 2.

hat I claim as my invention is 20 A tool, comprising a base memberhaving a e straight edge and central circular opening, the peripheraledge adjacent said opening having graduations delineated thereonextending equally in both directions from a 25 pointbisected by a radiusof said opening perpendicular to said straight edge, said delineationsrepresenting degrees, a circular plate rotatably mounted in said openingand carrying a straight edge member, said plate being 1 formed with arelatively large central opening, there being coacting graduationsdelineated on said plate and extending equally in both directions from aradius of said plate a perpendicula te a d siililightedge member saidplate graduations representing elevation in inches per foot on a baseline, and a pair of opposed spirit levels carried by said plate andprojecting into said plate opening and being visible from both sides ofthe tool. t In testimony whereof, I afiix my signature.

LOUIS WERNIOKE.

